Khurram Faraaz created DRILL-4958:
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Summary: Union All qiery fails stating that parquet files are
schema less
Key: DRILL-4958
URL: https://issues.apache.org/jira/browse/DRILL-4958
Project: Apache Drill
Issue Type: Bug
Components: Execution - Flow
Affects Versions: 1.9.0
Reporter: Khurram Faraaz
UNION ALL query over parquet files fails and reports that the Union-All was
over schema-less tables.
Parquet files are not with out a schema, they do have metadata. We need to fix
this. Postgres returns results for the same query on same data.
Drill 1.9.0
git commit ID : a29f1e29
{noformat}
0: jdbc:drill:schema=dfs.tmp> select * from `t_alltype.parquet` t1 union all
select * from `t_alltype.parquet` t2;
Error: UNSUPPORTED_OPERATION ERROR: Union-All over schema-less tables must
specify the columns explicitly
See Apache Drill JIRA: DRILL-2414
[Error Id: b6069bdc-8697-4578-a799-802ff3e80f00 on centos-01.qa.lab:31010]
(state=,code=0)
{noformat}
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